JPH0542004B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION A. INDUSTRIAL APPLICATION The present invention relates to an apparatus for reducing electromagnetic interference (EMI) from computers.

B. Prior Art and its Challenges One method for reducing unwanted electromagnetic emissions from personal computers is to surround the computer with a housing without openings or removable covers. However, this method is impractical because the user requires access to the computer's internal devices, such as disk drives. Additionally, access to the interior of the computer may be required, which requires a removable cover. Such removable covers can lead to EMI emissions if not designed properly.

Therefore, the object of the present invention is to avoid the undesirable
An object of the present invention is to provide a device that reduces EMI and allows an I/O device or storage device such as a disk drive mechanism to be easily removed from a computer.

C. SUMMARY OF THE INVENTION This specification describes a computer housing that can accommodate multiple disk drives and other similar devices in multiple bays.
A removable storage device retention/cover structure covers the storage device, such as a disk drive mechanism. The housing is constructed such that the containment device can be easily removed. In accordance with the present invention, a shielding strip for a computer is provided that includes a conductive housing and a non-conductive enclosure structure disposed within the housing. The containment device mounting structure includes a plurality of bays that communicate with openings in the housing. A conductive retention device is provided over the opening to retain the containment device within the bay. The shielding strip includes a body extending along a first side of the housing adjacent the opening and disposed between the first side and the containment mounting structure. The shielding strip further includes:
It includes a plurality of spring structures extending laterally from the body toward the bay. Each spring structure includes a first spring portion for contacting the retaining device and a second spring portion for contacting the conductive portion of the containment device attached to the respective bay.

D. Embodiment FIG. 1A shows a personal computer assembly 1.
1 is an exploded perspective view of a personal computer assembly 10 including an enclosure or case 15 and a disk drive support structure 20. FIG. Case 15
is manufactured from an electrically conductive material and exhibits an approximately parallelepiped shape. More specifically, the case 15 includes a front member 15A, a rear member 15B, an upper member 15C, a lower part 15D, and a side member 15E. The remaining sixth side of the parallelepiped shape of the case 15 is open as shown in FIG. 1A. An open chamber 25 is formed within case 15 for housing computer components and associated structures such as disk drive support structure 20.

As shown in FIG. 1B, when installed in housing 15, disk drive mechanism support structure 20
almost the entire inner surface of the front member 15A and the case 1
It extends to a considerable part of the interior of 5. Support structure 20 is secured at several locations within case 15 and is configured to provide additional structural integrity to case 15, as discussed in more detail below.

The disk drive support structure 20 is fabricated from an electrically insulating, generally structurally rigid material such as, for example, polycarbonate/ABS plastic.
The disk drive support structure 20 is shown in more detail in the front right side perspective view of FIG. In the personal computer industry, the term "full-height" disk drive is used to indicate a disk drive of a certain size, and the term "half-height" is used to indicate a disk drive that is approximately half the height of a "full-height" disk drive. It is used to indicate the disk drive mechanism. Hard disk drive and floppy drive
Both disk drives can be either full height or half height.

Disk drive support structure 20 includes multiple bays for accommodating multiple disk drives stacked on top of each other. More specifically, structure 2
0 are bays C1 and C2 which together form bay C
including. Bay C accommodates one full-height disk drive, and bays C1 and C2 each can accommodate two half-height disk drives.
Structure 20 further includes a bay D, which is generally similar to bay C. Bay D includes bays D1 and D2. Bay D
can accommodate one full-height disk drive or two half-height disk drives in bays D1 and D2, respectively. The disk drive support structure 20 also includes a half-height bay E, as shown in FIG. 2, in this particular embodiment of the invention. Disk drive support structure 20 further includes bays A and B at the top of structure 20, as shown in FIG.

More specifically, the disk drive mechanism support structure 2
0 has substantially parallel side walls 30 and 35. Structure 20 further includes structure 20 of FIGS. 2 and 3.
As shown in the right rear perspective view of
A front wall 40 extending between the side walls 30 and 35 is integrally molded with the front wall 5 . Returning again to FIG. 2, the front wall 40 of the structure 20 has a plurality of openings 45, 50.
and 55. These openings are located in bays C, D,
E and provides a path for mounting a disk drive mechanism in such a chamber. Bays A and B have similar openings. As can be seen in Figure 2, bays A, B, C, D, and E
substantially parallel shelves 20A, 20B, 20C, 20D, 20E, extending between side walls 30 and 35 of
It is formed between 20F. Cielf 20F
is the uppermost shelf among the shelves 20A to 20F. Shelf 20A, 20B, 20C,
20D, 20E, 20F are spaced apart and stacked on top of each other, with bays A, B, C, D, E between them.
form.

The peripheral part of the front wall 40 is, as explained below,
It includes a plurality of bolt holes 60 for firmly fixing the disk drive mechanism support structure 20 to the inner surface of the case 15 with bolts. As can be seen from Figure 1B,
Front member 15A of case 15 includes a plurality of bolt receiving holes 65 that align with corresponding bolt holes 60 in structure 20 when structure 20 is within case 15. Next, each bolt 70 is inserted into the corresponding hole pair 6.
Place it within the range of 0 to 65, fix it with an appropriate fastener,
Front wall 40 of structure 20 is secured to front member 15A of housing 15.

Returning again to FIG. 3, disk drive support structure 20 includes four mounting pads 70 each including a hole 75. As shown in FIG. When structure 20 is inside case 15 as shown in FIG. 1B, structure 2
0 hole 75 is aligned with the corresponding corresponding threaded hole 80 of side member 15E. For easy understanding,
The portion of side member 15E adjacent representative hole 80 is shown approximately four times larger than actual size in FIG.

A left side perspective view of structure 20 is shown in FIG. 4 to more clearly show mounting pads 70, holes 75, and sidewalls 35 of disk drive mechanism 20. A corresponding threaded bolt 85 is threaded into each pair of holes 75-80 to secure the side wall 35 of the structure 20 to the side member 15E of the case 15.

As can be seen in FIG. 1B, the drive mechanism support structure 20 extends both laterally and vertically across a majority of the interior surface of the front member 15A. In this particular example, support structure 20 extends along the entire interior surface of front member 15A. Additionally, support structure 20 is fixedly attached to two generally perpendicular members of case 15, namely front member 15A and side member 15E, as described above.

In this way, the disk drive mechanism support structure 20
mounting within the case 15 greatly increases the structural integrity of the case 15. Support structure 20 accommodates and supports multiple disk drive mechanisms while greatly improving the structural integrity of case 15. More specifically, since the structure 20 has multiple chambers, the case 15 is reinforced,
It serves to increase the stiffness of the case 15 against moments of force that would otherwise cause the case 15 to twist and distort, an undesirable result.

FIG. 5 is an enlarged exploded right perspective view of the lower bay C portion of the disk drive mechanism support structure 20 already shown in its entirety in FIG. 2. FIG. Bay D is substantially similar to bay C, so the following discussion regarding bay C also applies to bay D. Half-height and full-height drives are generally made of plastic that allows the drive to slide in and out of fixed, non-removable rail guides, usually located inside the computer.
Rails are attached to its two opposing sides. Maximum flexibility in choosing whether to place one full-height drive mechanism or two half-height drives in bays C and D is desirable. Additionally, it is desirable to provide an appropriate amount of clearance or rocking space between the sides of the hard disks mounted in the bay to avoid or reduce impact damage to the hard drive mechanism.

Bay C includes a removable drive mechanism support guide 90, as shown in FIG. The top of bay C includes support guide receiving grooves 95A and 95B in side walls 35 and 30, respectively, which grooves each receive a respective removable support guide 90, as will be explained in more detail below. Can receive. The lower part of bay C includes rail receiving guides 100A and 10 integrally formed within side walls 35 and 30, respectively, as shown in FIG.
Contains 0B. A pair of guide rails (described later)
slipped and the rail receiving guides 100A and 100
It is attached to both sides of the full-height drive mechanism or half-height drive mechanism so that it can enter B.
The support guide 90 attached to the guide receiving grooves 95A and 95B supports the receiving guide 100A below it.
and 100B is not fitted with a full-height drive mechanism, it can receive a half-height drive mechanism with the rails mounted as described above.

In this particular embodiment, support guide 90 is generally rectangular with opposing ends 105 and 110 and opposing sides 115 and 120. The guide receiving grooves 95A and 95B allow the support guide 90 to be inserted into the side walls 35 and 3, as described below.
Laterally oriented slots 125 and 130 are provided along a portion of the groove to facilitate attachment to the groove.

Slot 125 has opposing ends 125A and 125B. Slot 130 has opposing ends 130A and 130B. Support guide 90 includes flexible snaps or latches 135 and 140 spaced apart a predetermined distance approximately equal to the length of slots 125 and 130. As an example, the installation of support guide 90 in slot 130 will be discussed below, but it should be understood that the same method can be used to install support guide 90 in slot 125. A pair of stops 145 and 150 are provided adjacent latch 135, as shown in FIG. Similarly, a pair of stops 155 and 160 are provided adjacent latch 140. Support guide 90 in groove 9
5B, the stop pair 14
5-150 are located adjacent slot end 130A, and stop pairs 155-160 are located adjacent slot end 130B to prevent significant lateral movement of support guide 90 within groove 95B.

Latch 135 includes a flexible arm 135A extending from guide 90. Catch or protrusion 1
35B is provided at the end of arm 135A to allow arm 135A to flex when stop pair 145-150 of guide 90 is placed in slot 130 until protrusion 135B captures and retains slot end 130A. It's getting old. Similarly, latch 140 includes a flexible arm 140A extending from guide 90 and a catch or projection 140B at the end of arm 140. Arm 14
Similarly, 0B is the stop pair 155 of the guide 90.
When 160 is placed in slot 130, it flexes. Protrusion 140B then captures end 130B and holds guide 90 in place within slot 130 of groove 95B. As can be understood from the foregoing, latches 135 and 140
This is an active snap member integrally molded into 0. Support guide 90 supports arms 135A and 14
By deflecting 0A and pulling guide 90 away from slot 130 with sufficient force to overcome the snapping action of latches 135 and 140, it is easily removed from groove 95B.

Sides 115 of guide 90 include grooves 165 for receiving disk drive rails or other sliding structures. When disk drive support guide 90 is removably attached to grooves 95A and 95B as described above, a half-height disk drive mechanism having two rails attached to its sides as described above will By sliding the rail into the groove 165 of the support guide 90,
It can be easily attached to the top of bay C.

To facilitate the sliding of the rail into the groove of the support guide 90, the guide 90 includes a pair of protrusions 175 and 180 that funnel-shaped at ends 175A and 180A to allow the rail to slide into the groove of the support guide 90. When first approaching the groove 165 and engaging with the groove 165,
Improves rail alignment within groove 165.

FIG. 6 shows the personal computer assembly 1.
2 is an exploded perspective view of the front of the 0, illustrating the various drive mechanism combinations that can be accommodated in the drive mechanism support structure 20. FIG. For ease of understanding, the lower part of the drive mechanism C is represented by bay C1, and the upper part of bay C is represented by bay C2. Similarly, the lower part of the drive mechanism D is designated by D1, and the upper part of the bay D is designated by bay D2.

At this stage of disk drive technology, most disk drives are available in one or two different standard heights (full height or half height) and one or two different standard widths (5.25 inches or 3.5 inches). have The disk drive mechanism support structure 20 includes a sixth
As seen in the example shown, all of these types of drive mechanisms are supported. Bay C of structure 20
and D are full height bays, but bays C1, C2, D
1, D2 is a half-height bay.

When housing the full height drive mechanism 185 in bay C, the snap-in support guide 90 is placed in the upper bay C2.
from the inner grooves 95A and 95B (not shown). Next, as can be clearly seen from the front view of the chamber C shown in FIG.
Rails 190 and 190' placed on both sides of 5
into the rail receiving guides 100B and 100A, respectively.

Two half-height 3.5-inch drive mechanisms 195 in bay C
When storing in the snap-in support guide 90
are installed in the grooves 95A and 95B of the upper bay C2. As can be seen in FIG. 6, and even more clearly in the front view of chamber C in FIG. 8, drive mechanisms 195 are each mounted in an adapter tray 200. Adapter tray 2
00 includes integral conductive side rails 205 and 210, as discussed in detail below.
In the lower bay C1, side rails 205 and 21
0 is the sliding rail receiving guide 100A and 100
Enter B. In upper bay C2, side rail 2
05 and 210 slide into the respective grooves 165 of the support guide 90.

Two half-height 5.25-inch drive mechanisms 215 in bay C
When storing in the snap-in support guide 90
in the upper bay C2 in the same manner as shown in FIG.
Install it in the grooves 95A and 95B. Returning to FIG. 6 for a moment, a pair of rails 220 are connected to the drive mechanism 2.
15, only one rail 220 of which is visible above each drive mechanism 215 in FIG. As can be seen from the front view of bay C in FIG. 9, in lower bay C1, rail 220 of drive mechanism 215 slides into rail receiving guides 100A and 100B. In the upper bay C2, the rail 2 of the remaining drive mechanism 215
20 slides into the corresponding groove 165 of the support guide 90.

Returning again to FIG. 6, bay D is substantially similar to bay C. Therefore, bay D, like bay C, may have a full-height disk drive 185, two half-height disk drives 215, or two adapter tray-mounted disk drives 195.
to accommodate.

As shown in FIG.
It can contain one half-height drive mechanism 230 similar to , or one half-height drive mechanism 235 mounted on an adapter tray similar to drive mechanism 195 . The rails on drive mechanism 230 or drive mechanism 235 are in respective rail receiver guides 225A and 225B (shown in FIG. 10) that are substantially similar to rail receiver guides 100A and 100B in bays C and D.

As shown in FIG. 6, bays A and B can each house a disk drive mechanism 245. As shown in FIG. As shown in FIG. 10, a pair of disk drive mounts 250 and 255 are on bay A shelf 20A. Mount 250 and 255
are inverted L-shaped structures facing in opposite directions. Mounts 250 and 255 include arm portions 250A and 255A. Two mating flanges (not shown) attached to the disk drive mechanism 245 are attached to the arm 250A and the shelf 20, respectively.
A and into the area formed between arm 255A and shelf 20A to secure drive mechanism 245 within bay A shelf 20A.

Bay B also includes disk drive mounts 250 and 255 on its shelf 20B. Mounts 250 and 255 in bay B can secure disk drive mechanism 245 to shelf 20B in a manner similar to that described above. For example, other electrical equipment such as switches, key locks, displays, indicator lamps, or other devices can be installed on the shelf 20F.
It can be installed in the area between the upper side walls 30 and 35 of.

Although the above discussion of disk drive support structure 20 discussed mounting and housing full-height and half-height, 5.25-inch and 3.5-inch disk drives, those skilled in the art will appreciate that the present invention It is not limited only to the height and dimensions of. The dimensions of structure 20 can be easily modified to accommodate disk drive mechanisms of other dimensions. Furthermore, in the above description, the support structure 2
0 has been called the disk drive mechanism support structure,
Structure 20 may also support and house other electrical devices, such as, for example, magnetic tape drives, removable hard disks, optical disks, and the like.

FIG. 11 is a front right perspective view of the disk drive mechanism adapter tray 200 described above in the discussion of FIG. Tray 200 is in bay C, D or E.
These bays are used to accommodate disk drives or other devices that are substantially narrower than the bays. As previously mentioned, bays C, D and E are wide enough to accommodate 5.25 inches of media. The adapter tray 200 allows you to handle narrow media such as those with a 3.5 inch drive mechanism.
Rail receiving guide pair 100A, 100B and 225
A and 225B or between support guides installed in grooves 95A/95B. These locations are shown in FIGS. 8 and 10.

Returning to FIG. 11 again, the adapter tray 20
0 has a nearly rectangular frame shape. Tray 200 is manufactured from a conductive material. Adapter tray 200
includes side members 260 and 265 having generally planar bases 270 and 275, respectively. Base 270 includes opposing ends 270A and 270B. Base 275 includes opposing ends 275A and 275B. Connecting rod 280 is integrally formed from the same material as side members 260 and 265. Connecting rod 280 extends between ends 270A and 275A of bases 270 and 275. Connecting rod 2
80 is bent downwardly and at an angle of approximately 90 degrees with respect to the plane of bases 270 and 275. Connecting rod 285
are the ends 270B and 27 of the bases 270 and 275.
Connect 5B. Connecting rod 285 is integrally formed from the same material as bases 270 and 275.

The drive carriage member 290 is connected to the arm 295
and 300 to the base 260 . Carriage member 290 extends downward from base 270, as shown in FIG. Another drive mechanism carriage member 305 (partially shown in FIG. 11) that is substantially similar to carriage member 290
extends downward from base 275. Carriage members 290 and 305 include through holes 310 that are aligned with corresponding holes 315 in disk drive mechanism 195 when drive mechanism 195 is between carriage members 290 and 305. When the drive mechanism 195 is in such position, a screw 318 is placed in the through hole 310 and the hole 315 to attach the drive mechanism 195 to the adapter tray 2.
00, thereby forming an electrical connection between the drive mechanism 195 and the adapter tray 200.

Each adapter tray 200 has a base 27
0 and 275 with integrally formed side rails 320 and 325. side rail 3
20 and 325 are formed from the same conductive material as bases 270 and 275. side rail 32
0 includes opposing ends 320A and 320B. Side rails 325 have opposite ends 32
5A and 325B. As seen in FIG. 11, side rails 320 and 325
are curved upwardly relative to bases 270 and 275, respectively. Additionally, the side rail 320
and 325 are oriented approximately perpendicular to bases 270 and 275, respectively.

Connecting member 280 serves as a convenient handle for the user to grasp when installing adapter tray 200 into the disk drive bay. adapter·
For example, the tray 200/drive mechanism 195 is
When actually placed in the 1st class disk drive bay,
The user grasps the connecting member (handle) 280 and slides the side rails 320 and 325 into the rail receiving guides 100A and 100B, respectively. Side rails 320 and 325 are separated by a predetermined distance selected to allow rails 320 and 325 to slidably engage and ride rail receiving guides 100A and 100B.

FIG. 12 is a rear perspective view of the grounding spring 330. The grounding spring 330 is connected to the drive mechanism 185 in FIG. 7 (or the drive mechanism 215 in FIG. 9).
removable side rail 190 of FIG. 6 (or 220 of FIG. 6) to enable grounding of such drive mechanism when mounted on the non-conductive drive mechanism support structure 20 of FIG. 1A. Can be installed on top. FIG. 13 shows ground spring 330, removable side rail 190, and drive mechanism 185.
It shows the spatial relationship of

Returning to FIG. 12 again, the grounding spring 330
includes a flat body or shank 335 with opposing rear and front surfaces 335B, 335A and opposite ends 335C and 335D. The grounding spring 330 is manufactured from a relatively thin conductive material such as stainless steel, beryllium copper,
Other conductive materials such as phosphor bronze or high strength spring steel may also be used. As seen in FIG. 12, the grounding spring 330 includes a folded spring portion 340 integrally formed at the spring body end 335C. Folded spring portion 340 includes a flange 345 that tapers inwardly toward body 335 .

A side spring contact 350 is integrally formed on the opposite body end 335D. side·
The spring contact 350 has a flange portion 350A.
and 350B, flange portion 350A slopes away from spring body 335 to form an apex 355 between
The flange is bent again toward the main body 335 at B. If a conductive drive mechanism support chassis is used in place of the non-conductive drive mechanism support structure 20 described herein, this apex 355 is used for electrical contact to such a chassis.

Drive mechanism 18 shown in FIG. 12 and of FIG.
5. As shown in the exploded perspective view of the rail 190 and ground spring 330 assembly, a drive mechanism mounting screw receiving opening 360 is provided in the main body 335. When the grounding spring 330 is mounted on the rail 190 and screwed to the side surface 185A of the metal drive mechanism, the tongues 365 and 3 are attached as shown in FIG.
A pair of teeth or tongues 36 such that 70 bites into the drive mechanism side 185A to form electrical contact between the ground spring 330 and the drive mechanism 185.
5 and 370 (see FIG. 12) are located adjacent to opening 360.

To better understand the operation of the ground spring 330 attachable to the removable rail 190, the rail 190 will now be described in more detail using the exploded perspective view of FIG. Rail 190 is manufactured from a non-conductive material such as a plastic material. Rail 190 is a generally flat strip with opposing ends 190A and 190B and further opposite sides 190C and 190B.
Equipped with 90D. Rail 190 includes suitably shaped openings 375 to receive side spring contacts 350 when ground spring 330 is installed on rail 190. For example, aperture 375 can be rectangular. Rail 190 has opening 38
0, and the opening 380 is connected to the ground spring 330.
is suitably shaped to receive the flange 345 of the folded spring portion 340 when installed on the rail 190. The rail 190 further includes a recess 3
85, and the recess 385 is located on the rail side surface 190C.
from the opening 380 of the rail side surface 190D to the opening 38 of the rail side surface 190D.
0 to surround the rail end 190A. Recess 38
5 receives the folded spring portion 340.

The rail 190 further includes a threaded hole 390 that connects the grounding spring 330 to the rail 1.
90, opening 3 of the grounding spring
60. As shown in Figure 14,
The rail 190 connects the rail 190 to the drive mechanism 185.
Another screw hole 3 to make it easier to attach to
95. The drive mechanism 185 includes screw holes 400 and 405, and when the rail 190 is attached to the drive mechanism 185,
Aligned with rail screw holes 390 and 395, respectively.

When actually attaching the grounding spring 330 to the rail 190, the flange 145 is inserted into the opening 380.
flange 345 against the spring action a sufficient distance to allow the flange 345 to slide along the recess 385 on the rail side 190C until the folded spring portion 340 is within the recess 385. and pull it away from the main body 335. At about the same time, spring contact 350 is placed in opening 375. Next, screw 410 is inserted into hole 390, opening 360, and drive mechanism hole 400. Next, rail 19
0/Tighten screw 410 until spring 330 is firmly held in drive mechanism 185. screw 415
into hole 395 and through drive hole 405;
Tighten in the same way.

FIG. 15 is a bottom cross-sectional view of grounding spring 330 mounted on a rail 190 attached to drive mechanism 185, which is mounted to non-conductive drive mechanism support structure 20 within housing 15. . The cross-sectional view of FIG. 15 is taken along line D--D of FIG. In this way, the drive mechanism 185 is electrically connected to the case 15, and grounding of the drive mechanism 185 is established. Therefore, the grounding spring can be used in two different ways. That is, first, a non-conductive drive mechanism support structure, such as structure 20, is used to support drive mechanism 18.
5, the folded spring portion 340
secondly, spring contacts 350 that contact a conductive drive mechanism support structure (not shown) when used in place of support structure 20; is used as a means for making a connection between the drive mechanism 185 and the electrically conductive drive mechanism support structure. The retaining device 420 will be explained in more detail later.

As shown in part in the cross-sectional view of drive mechanism 185 and adjacent structures in FIG.
Another ground spring 330/rail 190' assembly, approximately symmetrical to the 0/rail 190 assembly, is placed on the remaining opposite side 1 in the same manner as above.
Installed on 85A. This cross-sectional view in FIG. 16 is taken along line E-E in FIG.
A portion of drive mechanism retainer 420 is also shown. An electromagnetic interference (EMI)/radio frequency interference (RFI) shielding spring structure 425 is between the case 15 and the drive mechanism support structure 20 and also contacts both the conductive retainer 420 and the folded spring portion 340. In this way, the drive mechanism 185 is coupled to the grounded case 15 and the holding device 420 is coupled to the grounded case 15. The characteristics of this grounding structure will now be considered in more detail.

FIG. 17 shows a flat strip 43 of conductive material.
FIG. 4 is a right side perspective view of a shielding spring structure 425 manufactured from scratch. 425 (C1), 425 (C
2), 425 (D1), 425 (D2), 425 (E)
A plurality of double spring structures, represented by , extend from one side of the strip 430 . The alphanumeric characters in parentheses in the above spring structure indicate the corresponding drive mechanism bay in which the spring structure is located, as will be explained in more detail below. Shielding spring structure 4
25 is manufactured from the same type of conductive material as ground spring 330 described above. Double spring structure 425 (C1), 425 (C2), 425 (D
1), 425(D2), and 425(E) are substantially the same, therefore only the dual spring structure 425(C1) will be considered below as an example.

The dual spring structure 425 (C1) includes a first spring member 435 having a contact plate 440 integrally extending from the spring strip 430 and loads the spring structure 425 prior to installing the spring structure 425 in the case 15. At the front, contact plate 440 is oriented at approximately a 95 degree angle relative to spring strip 430. Spring structure 425 (C1) is bent at an approximately 90 degree angle toward spring strip 430 at the end of contact plate 440 furthest from spring strip 430, as shown in FIG. A flange 445 is formed which is oriented substantially parallel to the .

The second spring member 450 forms a contact plate 440 of the first spring member 435, visible in FIG. 17 and even more clearly seen in the left perspective view of the spring shield structure 425 in FIG. The part to be punched out is punched out. As can be seen from FIG. 18, the second spring member 450 is
A central spring arm 455 is provided extending from spring strip 430. spring·
Arm 455 has opposing ends 455A and 45
5B, the end 455A of which connects with the spring strip 430. As shown in FIG. 18, a pair of wing members 460 and 4
65 extends away from spring arm end 455B. Wing member 460
and 465 can contact the contact plate 440, and the contact plate 440 can contact the wing members 460/465.
465 acts as a stop to prevent further movement toward contact plate 440. The second spring member 455 flexes in the direction shown by arrow 470 in FIG. 18 and arrow 475 in FIG. 17 when brought into contact with retaining device 420 in FIG. 16, as will be described below.

The shielding spring structure 425 is installed in a predetermined position on the drive mechanism support structure 20, as shown in FIG. 1A, and the double spring structure 425 (C
1), 425 (C2), 425 (D1), 425
(D2) and 425(E) are bays C1, C2, and D, respectively.
1, D2, and E. 1st
The spring strip 430 in FIG.
The guide post 485 in the figure is located in this guide hole 480.
extends through. Drive mechanism support structure 20 further includes a guide post generally similar to guide post 485.
Posts 490 and 495 are included. Returning again to FIG. 17, spring strip 430 of shield spring structure 425 further includes holes 500, 505.
and 510, which holes are aligned with corresponding holes in the drive mechanism support structure 20 when the shield spring structure 425 is installed. Insert screws (not shown) into these shield spring holes 500,
Through 505 and 510, the drive mechanism support structure 2
0 into the corresponding holes to retain the shielding spring structure 425 to the drive support structure 20.

Before concluding a discussion of spring shield 425, it is convenient to consider drive mechanism retainer 420, which helps hold in place any drive mechanisms installed in bays C, D, and E. Referring now to FIG. 19A, disk drive retainer 420 is shown in further detail. The retaining device 420 is manufactured from a conductive material and resembles a generally rectangular frame in appearance. The retaining device 420 includes generally parallel side support members 515 and 52 connected to the top of each by a connecting member 525.
0. Support members 515 and 520 are joined at their respective bottoms by a suitably sized coupling member 530 that covers drive mechanism C.

The retaining device 420 includes contact tabs 535 (C1),
535 (C2), 535 (D1), 535 (D2),
535(E), and these contact tabs connect spring structures 425(C1), 425(C2), 4 of FIG.
25 (D1), 425 (D2), and 425 (E), respectively. 1st
Although not visible in the view of retainer 420 shown in Figure 9A, contact tabs 540 (C1), 540 (C2), 5
40(D1), 540(D2), 540(E) are on the side support member 520 and contact tabs 535(C1), 535(C2), 53 shown on the side support member 515.
5(D1), 535(D2), and 535(E) with respect to axis 545. Contact tab 54
0 (C1), 540 (C2), 540 (D1), 5
40 (D2) and 540 (E) are shown in the right side perspective view of retaining device 420 in FIG. 19B.

With reference to FIG. 16, which shows a full height drive mechanism 185 installed in a bay of drive mechanism support structure 20,
The electrical connection provided by the shield spring structure 425 will now be considered. The shielding spring structure 425 connects the case 15 to the drive mechanism holding device 4.
20 and full height drive mechanism 185.
The configuration shown in FIG. 16 includes three contact areas 550, 5
55 and 560. More specifically, the spring strip 430 of the shield spring structure 425 connects the drive mechanism support structure 20 and the housing 1.
5 so that the housing 15 is connected to the shielding spring 425 at the contact area 550. The connection tab 535 of the retaining device 420 is connected to the contact area 5
The holding device 420 is electrically connected to the second spring member 450 of the shielding spring structure 425 at 55 so that the retaining device 420 is grounded to the case 15 . Furthermore, since the folded portion 340 of the grounding spring 330 is connected to the first spring member 435 at the contact area 560, the drive mechanism 185 is grounded to the case 15.

In another aspect, as shown in FIG. 20, a drive mechanism 195 mounted within an adapter tray 200 with integral conductive side rails 200/205 replaces the drive mechanism 185 discussed above. The drive mechanism support structure 20 is installed. In this case, the electrical ground connection is made as follows.
In the same way as in Figure 16 discussed above,
A retaining device 420 is connected to the housing 15 via contact areas 550 and 555. However, the integral conductive side rail 205 of the adapter tray 200 is connected to the first spring member 435 at a contact area 565. Therefore, the adapter tray 200 and drive mechanism 195 therein are grounded to the case 15.

As you can see from Figure 21, personal
To further improve shielding in the computer 10, conductive bezels 570, 571, 572, 573, 574 when no drive mechanism is housed.
are attached to the holding device 420 in bays D1, D2, E, B, and A, respectively. Mainly from Figure 16 to Figure 2
By using the grounding and shielding structures described above in connection with FIG. 1, both EMI and RFI generated from within the case 15 are significantly reduced.

Retainer 420 and bezel 575 of FIG. 19A
cooperate to drive the relevant drive mechanism to bays C1, C2, D.
1, D2, E, it is convenient to further discuss the drive mechanism support structure 20 and the retaining device 420. Referring to FIG. 2, drive mechanism support structure 20 includes snap members 580 and 585. Snap member 5
80 and 585 are used to first secure the retainer 420 to the housing 15 before attaching the bezel 575 to the retainer 420/housing 15, as discussed in more detail below.

To more clearly illustrate the shapes of the snap members 580 and 585, FIG. 22 is a cross-sectional view of a portion of the drive mechanism support structure 20 of FIG. 2 taken along section line B--B. Accordingly, a snap member 585 is shown in FIG. Housing 1
5 adjacent the drive mechanism support structure 20 is shown in FIG. The snap member 585 is approximately T-shaped and is attached to the drive mechanism support structure 2 as shown in the figure.
0, with an end 585A integrally attached to the end. Snap member 585 further includes an end 585B that extends through drive mechanism support structure 20 and an opening 590 in housing 15. Drive mechanism support structure 20 includes a similar opening 595 adjacent snap member 580, as shown in FIG. Returning again to FIG. 22, snap member 585 includes a ramp-like guide 600 that deflects downwardly about curved portion 585C when member 580 engages retention device 420. At the top of ramp 600 is a recess or catch 605, the operation of which will be discussed in more detail below. Snap member 58
0 is substantially similar to the snap member 585.

Referring now to FIG. 21, as more clearly shown in FIG. 19B, retention device 420 includes holes, apertures or slots 610 and 615 in side support members 515 and 520, and these slots are aligned with corresponding holes 595 and 590 in drive mechanism retainer 420 when retainer 420 is installed on case 15 and drive mechanism support structure 20 .

The installation of the retaining device 420 on the case 15/drive mechanism support structure 20 will now be considered. Second
FIG. 3 shows a cross section of the housing 15/drive mechanism support structure 20 of FIG.
Referring now to inset 23A, which is an enlarged view of the lower portion of retainer 420 that is first installed at the base of housing 15, retainer connecting member 5
The bottom portion of 30 includes a plurality of tabs 620. One of them is shown in inset 23A of FIG. 23. Four such tabs 620 are shown in the perspective view of retainer 420 in FIG.

When installing retainer 420, tab 620 of retainer 420 is placed over and adjacent lip member 625 at the base of case 15, as seen in inset 23A of FIG.
The lip member 625 is attached to the storage device 1 shown in FIG. 1B.
It is also shown in Figure 5. Next, lift retaining device 420 slightly in the direction of arrow 630 to remove tab 6
arrow 6 about a pivot point 640 formed where 20 contacts contact member 625 of housing 15.
Rotate in direction 35. The retaining device 420, as shown in the cross-sectional view and inset 24A of FIG.
Rotate in the direction of arrow 635 until contacting guide posts 485 and 490. Guide posts 485 and 490 are even more clearly seen in the perspective view of drive mechanism support structure 20 in FIG. As shown in FIG. 24, the guide post 48
5 and 490 extend beyond the housing 15 and towards the retaining device 420 through corresponding holes in the housing 15 (details not shown). guide·
Post 485 includes a tapered end 485A shown in FIG. 24, discussed next. Guide post 490 similarly includes such a tapered end.

FIG. 24 is the same cross-sectional view as FIG. 23, except that the retaining device 420 is shown in a further rotated state in FIG. 24 and insets 24A and 24B. Second
As can be seen from FIG. 1, the holding device 420 is
Holes 645 and 650 (shown in phantom) are provided for engaging guide posts 485 and 490, respectively. Returning again to FIG. 24, retainer 4 is rotated until hole 645 engages tapered end 485A of guide post 485, as shown in inset 24B.
As 20 continues to rotate, hole 645 rides up onto tapered end 485A, lifting retainer 420 in the direction of arrow 655. Holding device hole 650
The same phenomenon occurs when the guide post 490 engages with the guide post 490. The retaining device 420 is thus properly positioned and aligned on the housing 15.

After the retention device 420 engages the guide posts 485 and 490 as described above, the retention device 420 is inserted into the housing 15/490 as shown in FIG.
Retainer 420 in the direction shown by arrow 635 in FIG. 24 until fully engaged with drive mechanism support structure 20.
Continue to rotate. 25 is the same as the 24th embodiment except that the state in which the holding device 420 is further rotated is shown in FIG. 25 and its inserts 25A, 25B, and 25C.
It is the same cross-sectional view as the figure.

As can be seen from Figure 25, case 15/
The top of the drive mechanism support structure 20 assembly is shown previously in FIG. 2 and in further detail in inset 25A.
A guide post 495 is provided. Housing 1
5/ When the pivoting of the retainer 420 toward the drive mechanism support structure 20 assembly is substantially complete, the guide post 495 passes through the hole or opening 665 (see also FIG. 21) in the top of the retainer 420.

Similarly, as seen in inset 25B of FIG. 25, when retainer 420 is fully installed on the housing 15/support structure 20 assembly, retainer aperture 645 extends beyond guide post 48.
5 is fully engaged. guide post 490
(See FIG. 2) also includes the opening 650 of the holding device.
(not shown in FIG. 25, but shown in phantom in FIG. 21 and in more detail in FIG. 19B). In this way, housing 1
5/ Alignment of retaining device 420 on support structure 20 assembly is complete.

Inset 25C of FIG. 25 shows tabs 62 of retainer 420 against lip member 625 of housing 15 when installation of retainer 420 is completed.
Indicates the direction of 0.

As can be seen in FIG. 25 in conjunction with FIG. 22, when the rotation of the upper portion of the retainer 420 towards the housing 15/support structure 20 assembly is substantially complete, the retainer opening 610 meets the ramp 600 of the snap member 580. engage ramp 600 with arrow 66
Deflect downward in the direction of 0. As retainer 420 continues to rotate, aperture 610 bypasses ramp 600 and snap member 580 pops up in the direction of arrow 670. When that occurs, latch 605 is latched into retainer 420 adjacent opening 610. It should be noted that snap member 580 is substantially similar to snap member 585 shown in FIG. 22, and the same reference numerals are used to refer to the same components of snap members 580 and 585. As aperture 610 passes by latch 605, snap member 580 naturally snaps back to its undeflected original position.
and 585 together act as an "active snap."
The snap member 585 shown in FIG. 2 operates in substantially the same manner as described above and is partially shown in FIG.
It engages an aperture 615 in the relevant retaining device, shown in more detail in FIG. 19B.

When the installation of the retainer 420 on the housing 15/support structure 20 assembly is completed, bay C
1, C2, D1, D2, E is connected to the contact tab 535 (C
1), 535 (C2), 535 (D1), 535
(D2), 535(E) hold these bays firmly in place. These tabs act as stops to prevent movement by the relevant drive mechanism on the left side. Referring now to FIG. 16, how one such tab contacts folded spring portion 340 of grounding spring 330 to direct forward movement of rail 190' and drive mechanism 185 attached thereto. Explain how it will hinder you.
Retainer contact tabs 535 (C1), 535 as described above
(C2), 535 (D1), 535 (D2), 535
In addition to the stopping operation by (E), the tabs 540 (C1), 540 (C2), 540 (D1) that contacted the holding device,
540(D2) and 540(E) (detailed in FIG. 19B) perform similar stopping operations on the right side of bays C1, C2, D1, D2, and E, as seen in FIG. Do the following.

The arrangement for grounding the right side of the holding device 420 to the case 15 will now be considered. As seen in FIG. 1A, the housing 15 includes a top member 15C on the rightmost portion of the housing 15.
A flange 675 is provided extending from the bottom member 15D to the bottom member 15D. A conductive ground strip 680 is on flange 675. The ground strip 680 is coextensive with the flange 675 such that the right side of the retainer 420 is connected to the housing 15 through the conductive ground strip 680 when the retainer 420 is installed on the housing 15/drive mechanism support structure 20 assembly.
formed so as to be electrically coupled to. The construction and operation of the grounding strip 680 was published October 27, 1989.
Discussed in further detail in US Patent Application No. 428,140, dated.

Prior to installing bezel 575 on retainer 420, snap member 580 and Note that the catch 605 of 585 is subjected to significant force outwardly. Mounting the bezel 575 on the assembly formed by the retainer 420, housing 15, and drive mechanism support structure 20 relieves this force and tension. Next, the first
Referring to the front perspective view of the bezel 575 shown in FIG. 9A. Each bezel 575 has a side member 575A.
and 575B, top member 575C, bottom member 57
5D, a front surface 575E, and a rear surface 575F.

A rear perspective view of bezel 575 is shown in FIG.
Bezel 575 includes protrusions 695 and 700 extending from the top of the rear of bezel 575. Bezel 575 further includes guide posts 705 and 710.
Equipped with. Bezel 575 also includes resilient snap members 715 and 720 extending from its rear.

FIG. 27 is a side view of the housing 15/drive mechanism support structure 20, showing the holding device 420 before installation.
The initial position of the bezel 57 is shown, and the bezel 57 before installation is shown.
5 position is shown. The holding device 420 is the housing 1
The bezel 57 pivots around the bottom of the 57
Note that 5 pivots around housing 15. However, the holding device 420 is
Installed before the installation of 5.

19A, and further shown in FIGS. 25 and 27.
As partially shown in the figure, the retaining device 420 includes a cam and a cam at the top of the side members 515 and 520, respectively.
That is, circular protruding portions 685 and 690 are provided. FIG. 28 shows a side cross-sectional view of bezel 575, retainer 420, and a portion of housing 15 taken along section line CC of FIG. 19A. Second
FIG. 8 is used to describe the initial stage of installing bezel 575 on retainer 420. FIG. First, the protrusion 700 is inserted into the opening 725 of the retaining device 420.
and further passes through the opening 730 of the housing 15. The openings 725 and 730 are the 19th A
Shown in perspective view in the figure. Figure 19A also shows
By receiving the protrusion 695 of the bezel 575,
Also shown are a retainer aperture 735 and a housing aperture 740, which perform a similar function to apertures 725 and 730, respectively. At this stage in the installation of bezel 575, latches 60 of snap members 580
5, the outward force is indicated by arrow 741 in FIG.
The trend remains in the direction of bezel 575
has not yet released its pressure or force, as indicated by the latch 605 of the snap member 580 still in contact with the retainer 420.

The bezel 575 is then attached to the rear surface 57 of the bezel 575.
5F rotates in the direction of arrow 745 about pivot point 743 toward retaining device 420 until 5F engages cam 685. When the bezel 575 continues to rotate,
Bezel rear surface 575F continues to engage cam 685 to push retainer 420 toward housing 15 in the direction of arrow 750. This action causes the space 755 between the latch 605 and the retainer 420 to As shown, retainer 420 is pushed away from latch 605. In this manner, the force previously applied to latch 600 by retainer 420 is released.

FIG. 30 shows the first section cut along line C-C.
9A is a cross-sectional view of the bottom portion of the bezel 575/retention device 420/housing 15/support structure 20 assembly of FIG. 9A; FIG. As can be seen in FIG. 30, when the bezel 575 is rotated to the position above the retainer 420 as described above, the snap member 720 passes through the opening 760 in the retainer 420 and the opening 765 in the housing 15. It engages a lip 770 adjacent the bottom of housing 15. The location of lip 770 is shown in Figure 19A. Similarly, the snap member 715 is inserted into the corresponding lip 7 after passing through the retention device 420 adjacent to the snap member 715 and a corresponding opening (not shown) in the housing 15 when the bezel 575 is fully installed.
75 (shown in Figure 19A).

When bezel 575 is rotated and seated on retainer 420 as described above, guide posts 710 (shown in FIG. 26)
(shown in FIG. 19A) and an opening 785 in housing 15 (shown in FIG. 19A). Guide post 705 is attached to retaining device 420
and through a similar opening in housing 15. Guide posts 705 and 710 are attached to bezel 575
is rotated as described above to assist in aligning bezel 575 while seated on retainer 420.

E. Effects of the Invention According to the present invention, a computer housing having a removable cover structure can reduce undesirable EMI and allow the disk drive mechanism to be easily removed from the computer.

[Brief explanation of the drawing]

FIG. 1A is an exploded perspective view of the computer housing, retainer and grounding strip. FIG. 1B is a perspective view of the computer housing including the drive mechanism support structure. FIG. 2 is a front right perspective view of the drive mechanism support structure. FIG. 3 is a rear perspective view of the drive mechanism support structure. Fourth
The figure is a front left perspective view of the drive mechanism support structure. FIG. 5 is a perspective view of the drive mechanism support structure bay showing the removable guide. FIG. 6 is an exploded perspective view illustrating a plurality of disk drive mechanism configurations that can be installed on a drive mechanism support structure. 7th
The figure is a front view of a full height drive mechanism installed on a drive mechanism support structure. FIG. 8 is a front view of two half-height drives of a first dimension mated with an adapter tray and mounted on a drive support structure. FIG. 9 is a front view of two half-height drives of a second size mated with adapter trays and mounted on a drive support structure. 1st
FIG. 0 is a front view of the drive mechanism support structure. 1st
FIG. 1 is an exploded perspective view of the drive mechanism installed on the adapter tray. FIG. 12 is a perspective view of a grounding spring for a rail-mounted device. FIG. 13 is an exploded view of the rail-mounted device using the grounding spring of FIG. 12 prior to installation on the drive mechanism support structure. FIG. 14 is an exploded perspective view of the grounding spring, rail, and device attached to the rail. FIG. 15 is a bottom cross-sectional view of the grounding spring mounted on a rail mounted on the drive mechanism, taken along line D--D of FIG. 7; 16 is a bottom cross-sectional view of the grounding strip installed between the housing and the drive mechanism support structure, taken along line E--E of FIG. 7, showing the grounding strip and surrounding components; FIG. FIG. 17 is a front perspective view of the grounding strip of FIG. 16. FIG. 18 is a rear perspective view of the grounding strip of FIG. 16. 19th A
The figure is a front right side exploded perspective view showing the housing/drive mechanism support structure, retainer, and bezel. FIG. 19B is a rear left perspective view of the retainer of FIG. 19A. FIG. 20 is a bottom cross-sectional view of the grounding strip of FIG. 16 and surrounding components including the drive mechanism attached to the adapter tray. Second
FIG. 1 is a front right perspective view of the holding device. Second
FIG. 2 is a side sectional view showing the snap member of the drive mechanism support structure. Figure 23 shows the initial stage of installation of the retention device on the assembly;
FIG. 3 is a side cross-sectional view of the housing/drive mechanism support structure assembly. FIG. 24 is a side cross-sectional view of the computer housing/drive mechanism support structure assembly showing an intermediate stage of installation of the retention device on the assembly.
FIG. 25 is a side cross-sectional view of the computer housing/drive mechanism support structure assembly after installation is complete, showing the final stage of installation of the retention device on the assembly. FIG. 26 is a rear perspective view of the holding device bezel. FIG. 27 is a side view of the computer housing showing the retainer and bezel prior to installation on the computer housing. FIG. 28 is a side cross-sectional view of the top of the bezel during installation on the computer housing. FIG. 29 is a side cross-sectional view of the top of the bezel after installation on the computer housing. FIG. 30 is a side cross-sectional view of the bottom of the bezel after installation on the computer housing. 10...Personal computer assembly, 1
5... Housing, 20... Drive mechanism support structure,
90...Support guide, 100A, 100B...Rail receiving guide, 200...Disk drive mechanism adapter tray, 245...Disk drive mechanism,
290... Drive mechanism carriage member, 295, 30
0... Arm, 330... Ground spring, 42
0... Retaining device, 425... Shielding spring structure, 430... Spring strip, 48
5,490,495...Guide post.

Claims (1)

Claims: 1. A conductive housing and a non-conductive containment device mounting structure disposed within the housing, the mounting structure including a plurality of bays communicating with openings in the housing, and comprising a plurality of bays in communication with openings in the housing. a shielding strip for a computer, wherein a conductive retention device is disposed over the aperture for retaining a housing device, the shielding strip extending along a first side of the housing adjacent the aperture; a body disposed between the first side and the mounting structure; a first spring portion extending laterally from the body toward the bay and each contacting the retaining device; and a first spring portion and the bay. A computer shielding strip comprising: a plurality of spring structures including a second spring portion contacting a conductive portion of an enclosure mounted on the computer. 2. a conductive case; a non-conductive I/O mounting structure disposed within the case and including a plurality of bays for accommodating I/O devices; and for holding I/O devices within the bays. a retention device removably attached to the case; and a retention device extending longitudinally along and in conductive contact with a first side of the case, the attachment structure being connected to the first side and the mounting structure. a first portion extending laterally from the body toward the bay, each contacting the retaining device and an I/O device mounted in the bay; a plurality of spring structures including a second portion providing a flow path;